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Stafac 50

Generic Name: virginiamycin powder
Dosage Form: FOR ANIMAL USE ONLY

Stafac® 50
(virginiamycin)
TYPE A MEDICATED ARTICLE

Active Drug Ingredient

Virginiamycin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11%

(Contains 50 g virginiamycin activity per lb)

Ingredients:

Processed grain by-products, roughage products, calcium carbonate,

carboxymethylcellulose, mineral oil

(50 g virginiamycin activity per lb)

For use in swine and poultry feeds as specified below

Directions for Use

Mixing Directions—Swine

Stafac 50 Type A Medicated Article must be thoroughly mixed in the feed to assure even distribution. Determine the appropriate amount of Stafac 50 required from the table below. Dilute Stafac 50 with a portion of one of the feed ingredients (enough to make a quantity equal to 10 lb per ton) before final mixing.

Swine

Required level of virginiamycin activity per ton of Type C Medicated Feed (complete feed)

Required amount of Stafac 50 per ton of Type C Medicated Feed (complete feed)

Amount of virginiamycin activity provided to animal per lb of body weight per day

Continuous Feed Programs From Weaning to Market Weight

Weaning to 120 lb

Increased rate of weight gain and improved feed efficiency

10 g

90 g

120 lb to market weight

Increased rate of weight gain

Improved feed efficiency

5-10 g

5 g

45-90 g

45 g

Treatment of swine dysentery in nonbreeding swine weighing over 120 lb

100 g for

2 weeks

2 lb

2.27 mg

Treatment and control of swine dysentery in swine weighing up to 120 lb

100 g for 2 weeks followed by 50 g

2 lb

1 lb

2.27 mg

1.14 mg

Aid in control of swine dysentery in swine weighing up to 120 lb

For use in animals or on premises with a history of swine dysentery but where symptoms have not yet occurred

25 g

8 oz

0.57 mg

CAUTION: Not for use in breeding swine over 120 lbs.

 

Mixing Directions—Poultry

Mix 1 lb of Stafac 50 with 9 lb of feed ingredients to make 10 lb of an intermediate mix to contain 5 g/lb virginiamycin. Add 1 lb of the intermediate feed premix for each 5 g of virginiamycin needed to medicate a ton of feed.

Poultry

Required level of virginiamycin activity per ton of Type C Medicated Feed (complete feed)

Required amount of Stafac 50 per ton of Type C Medicated Feed (complete feed)

For use in broiler chickens

Increased rate of weight gain

5-15 g

45-135 g

Improved feed efficiency

5 g

45 g

Prevention of necrotic enteritis caused by Clostridium perfringens susceptible to virginiamycin

20 g

180 g

Not for Use in Laying Chickens

For use in growing turkeys

Increased rate of weight gain andimproved feed efficiency

10-20 g

90-180 g

Feed Continuously as Sole Ration

Store In a Dry, Cool Place

Close Container After Use

NOT FOR HUMAN USE

RESTRICTED DRUG (CALIFORNIA) – USE ONLY AS DIRECTED

For further manufacture only.

Follow Directions on Back Panel

Net Weight 50 lb (22.6 kg)

U.S. Patent Nos. 3,325,359 and 3,627,885;

for use under U.S. Patent No. 3,017,272

NADA #91-513, Approved by FDA

8815000

101-9107-03

Stafac 50 
virginiamycin powder
Product Information
Product Type OTC TYPE A MEDICATED ARTICLE ANIMAL DRUG Item Code (Source) NDC:66104-8815
Route of Administration ORAL DEA Schedule     
Active Ingredient/Active Moiety
Ingredient Name Basis of Strength Strength
VIRGINIAMYCIN (VIRGINIAMYCIN) VIRGINIAMYCIN 50 g  in 0.45 kg
Inactive Ingredients
Ingredient Name Strength
RICE BRAN  
Packaging
# Item Code Package Description
1 NDC:66104-8815-0 22.6 kg in 1 BAG
Marketing Information
Marketing Category Application Number or Monograph Citation Marketing Start Date Marketing End Date
NADA NADA91513 03/24/2010
Labeler - Phibro Animal Health (006989008)
Revised: 08/2010
 
Phibro Animal Health



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